Perhaps you should try some spelling variations:
technologies model » technological model, technologies modelling, technological models
model calculation » model calibration, index calculation, size calculation
calculation where » calculations charge, calculation source, calculations phase
10 communication » 1 communication, de communication, 3 communication
de developpement » sme development
developpement en » developpement et, developpement des, developpement de
where do » where _
a de » a die, a der, a des

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: technologies model calculation where do 10 communication a de developpement en afrique.*.